Skip placeholder and FALLBACK screens when building bars

[AnPod]

Summary

Fixes #13072

Idle wake recreated panels / duplicate IpcHandlers because Qt’s nameless placeholder and Hyprland FALLBACK spawned bars.

Change

• Bar Variants use BarModel.realScreens() so placeholder/FALLBACK screens do not get bars

Test plan

• bash test/shell.d/bar-test.sh

[llstrk]

Automated duplicate check

Community review: Independent automated community review, unaffiliated with the Omarchy team, intended to help prepare PRs for their review.

Possible duplicate: the 46 lines this PR adds are the same as in #13477, an open PR by the same author from 2026-09-27. Because of that, this PR was not reviewed separately. Closing one of the two would leave maintainers a single PR to review.

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[omarchybot]

Closing this as a duplicate of #13165, which was opened on 24 September against quattro and makes the same change.

Comparing the two diffs line by line: Bar.qml is identical, with all three Variants switched to root.realScreens; isRealScreen and realScreens in BarModel.js are identical apart from the comment above them; and the bar-test.sh assertions are the same, apart from blank lines. The one code difference favours #13165: its check that all three Variants use the filter defaults the rg -c count to 0, while the one here becomes (( != 3 )) when nothing matches, which is an arithmetic error that lets the test pass.

What this pull request adds is the link to #13072. Whether #13165 should also close that issue is for the maintainer to decide there; the bar change only partly addresses #13072, since the background and notification windows are still created for the placeholder screen.

Compared by Claude Opus 5.5; Codex Medium was asked separately, from the two diffs alone, and agreed they are the same change (independence is not guaranteed). Nothing was run for this, because closing a duplicate needs only the comparison. If this is wrong, reopen it.